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In this section, you will carry out the following basic estimation and tests of differences using the provided SampleDataSet.xlsx:
Identify three continuous and three discrete variables and describe their distribution numerically (e.g., central tendency, spread) as well as graphically. Compare the results.
Using the variables selected, conduct all possible t-tests and chi-squared tests. Describe your findings.
In addition, discuss how data limitations (e.g., missing values, etc.) can affect the validity and reliability of statistical estimations and tests of differences. Be specific. Show your work using Microsoft Excel and import your work into a Microsoft Word document.
If a new graduate is given a bunch of flowers from this outlet, what is the probability that the flowers were purchased by their partner or friend?
A new industrial oven has just been installed at the Piatt Bakery. To develop experience regarding the oven temperature, an inspector reads the temperature at four different places inside the oven each half hour.
If we have 2 groups with 2 characteristics each, what would our critical value be with an alpha of .025?
giving a test to a group of students the grades and gender are summarized
a state school administrator says that the standard deviation of test scores for eighth grade students who took a u.s.
For the period from 1918 to the present, in a random sample of 13 wolves spotted in the region, what is the probability that 10 or more were male? What is the probability that 10 or more were female?
Make a decision using the Decision Rule approach at given α = 0.05.
In looking at your business, when and why would you want to use a one-sample mean test (either z or t) or a two-sample t-test? Create a null and alternate hypothesis for one of these issues. How would you use the results?
the length of time in seconds that a user views a page on a web site before moving to anotherpage is a lognormal random
What is the point estimate of the mean planned expenditure by all Americans taking long summer vacations in 2002?
Rachel's Z score indicates that she is below average for those who took the ACT
a sample of 9 quiz scores had a mean of 15.2 and a sample standard deviation of s 3.3. if it is known that the quiz
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